LM95234_07 NSC [National Semiconductor], LM95234_07 Datasheet - Page 22

• Manufacturer Part Number: LM95234_07
• Description: Quad Remote Diode and Local Temperature Sensor with SMBus Interface and TruTherm Technology
• Manufacturer: NSC [National Semiconductor]

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Register Name
Diode Model Select
Register Name
Remote 1 Offset
Remote 2 Offset
Remote 3 Offset
Remote 4 Offset
Register Name
Configuration
2.2 DIODE CONFIGURATION REGISTERS
2.2.1 Diode Model Select
2.2.2 Remote 1-4 Offset
2.3 CONFIGURATION REGISTERS
2.3.1 Main Configuration Register
Bit(s)
7-5
4
3
2
1
0
Bit(s)
7
6
5
4
3
2
1
0
Bit Name
0
R4TE
R3TE
R2TE
R1TE
0
Bit Name
SIGN
32
16
8
4
2
1
1/2
Read/
Write
RO
R/W
R/W
R/W
R/W
RO
Read/
Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Command
Command
Command
(Hex)
(Hex)
(Hex)
Byte
0x30
Byte
0x31
0x32
0x33
0x34
Byte
0x03
Description
Reserved – will report "0" when read.
Remote 4 TruTherm Enable
Remote 3 TruTherm Enable
Remote 2 TruTherm Enable
Remote 1 TruTherm Enable
Reserved – will report "0" when read.
Description
Sign bit
bit weight 32°C
bit weight 16°C
bit weight 8°C
bit weight 4°C
bit weight 2°C
bit weight 1°C
bit weight 1/2°C (0.5°C)
Read/
Read/
Read/
Write
Write
Write
R/W
R/W
R/W
R/W
R/W
R/W
SIGN
SIGN
SIGN
SIGN
D7
D7
D7
0
–
22
STBY
D6
D6
D6
32
32
32
32
0
D5
D5
D5
16
16
16
16
0
–
R4TE R3TE R2TE
D4
D4
D4
8
8
8
8
–
Logic 1 selects diode model 1 TruTherm
BJT beta compensation technology
enabled (Ex: Intel 65 nm technology)
Logic 0 selects diode model 2 MMBT3904
All registers have 2’s complement format.
The offset range for each remote is
+63.5°C/−64°C. The value programmed
in this register is directly added to the
actual reading of the ADC and the
modified number is reported in the remote
value registers.
D3
D3
D3
4
4
4
4
–
D2
D2
D2
2
2
2
2
–
R4QE R3QE
R1TE
D1
D1
D1
1
1
1
1
1/2
1/2
1/2
1/2
D0
D0
D0
0
Default
Default
Default
(Hex)
(Hex)
(Hex)
POR
0x02
POR
0x00
0x00
0x00
0x00
POR
0x03